Heel-trimming machine



(No Model.)

0. W. GLIDDEN. HEEL TRIMMING MACHINE.

No. 410,088. Patented Aug. 27 1889.

Minesgws. lw/emboffl 547 1. away azaxzwzaazzzzzgv UNITED STATES PATENTOEEIcE.

CHARLES WV. GLIDDEN, OF LYNN, ASSIGNORTO JAMES WV. BROOKS, TRUSTEE,

OF CAMBRIDGE, MASSACHUSETTS.

HEEL-TRIMMING MACHINE.

SPECIFICATION forming part of Letters Patent No. 410,088, dated August27, 1889.

Application filed June 25, 1888. Renewed March 7, 1889. Serial No.802,390. (No model.)

To aZZ whom it may concern:

Be it known that 1, CHARLES W. GLIDDEN, of Lynn, county of Essex, Stateof Massachusetts, have invented an Improvement in Heel- TrimmingMachines, of which the following description, in connection with theaccompanying drawings, is a specification, like letters on the drawingsrepresenting like parts.

This invention has for its object to improve the construction andoperation of heel-trimming machines of that class where the rand oroounterguard and rand-cutter are moved automatically to uncover more orless of the cutting-edges of the blades parallel to their cutting-edges.In this present embodiment of my invent-ion the rand or counter guard issupported by one rather than by two links, as in another application,Serial No. 275,880, filed by me, the employment of one link reducing thecost of and simplifying the mechanism. Herein I have combined with therand or counter guard a treadle by which to move it positively wheneverdesired. I have also combined with the rand or counter guard andheel-trimming tool a wind-trunk having a telescopic bonnet.

Particular features in which invention consists will be described in thespecification; and pointed out in the claims at the end thereof.

Figure 1 is a front elevation of a heel-trimming machine embodying myinvention; Fig. 2, a left-hand end elevation of the same; Fig. 3, a topor plan view of the machine shown in Fig. 1, and Fig. 4 a detail of theheel or edge rest.

The main frame-work of the machine,

shaped as shown, is made hollow in the part A to constitute awind-trunk, the hollow part A rising from a blower-shell A, bolted to abase A having suitable legs, the said base having also bolted to itsuitable brackets A A, which support usual pivoted bearings A for themain driving-shaft A, one of the said brackets, as A being extendedvertically to serve as a support for the wind-trunk.

The main shaft A has fast on it any usual form of exhaust-fan, wherebyin the rotation of the shaft air will be drawn down through the trunk Aand shell A, andto be discharged from the mouth of the said shell, asshown by the arrow, Fig. 2, the said driving-shaft containing not onlythe said exhaustrfambut also the driving-pulley B, which drives the beltB, extended over the pulley B and rotating the cutter-shaft B havingsuitable bearings 13 erected on the flanged head A The head A has boltedto it a bonnet composed of two hollow trunk portions B B, one

sliding telescopically into the other, in order that the area of theopen space or mouth of the wind-trunk next the cutter may be adjusted tocorrespondwith the size of the cutter being used, the movable portion 13hav ing an arm 13 connected to an adjustable block 0, in or on which ismade adjustable the block 0, to which is pivoted at C the link 0employed to support the carriage 0 provided with the rand or counterguard a, having a lip, as usual, to enter the randcrease.

The carriage O has suitable bearings for the shaft 1), having attachedto its inner end a rand-cutterh of any usual construction. The carriageO has an outwardly-extended rigid arm 0, provided with a roller or otherstud c, which enters a slot in an arm 0 adjustably attached by a stud orscrew 0 to an arm or portion of the block 0, the adjust-x the slot inthe said arm in which moves the said roller or other stud c to be placedin the desired position or angle with relation to the axis of rotationof the cutter-shaft B andthe cutter D, which with its blades may be ofany usual or desired shape.

The position of the block 0 is determined by the screw-bolt 2, andaccording to the position of the said screw-bolt the portion B of thebonnet will enter the portion B thereof more or less, the position ofthe said screw being changed according to the length of the cutter beingemployed.

The cutter herein shown will have co-operatin g with it in usual mannera tread-guard D.

The flanged head A has erected upon it a stand d, (shown in Fig. 2,)which receives within it the reduced pin d, forming part of a lever (i(shown as of elbow shape,) one arm of the said lever having connected toita link orrod 01 having at its lower end a roller cr other stud d,which enters a cam-slot 22 in IOC an arm 23, rising from or forming partof a treadle 24, the movement of the said treadle and cam-slot causingthe lever (Z to be rocked upon its pivot This bell-crank lever d has anarc-shaped arm 25, made dovetailed in cross-section, as best shown inFig. 3, the said dovetailed portion depending and having adjustablymounted upon it a block 26, which may be secured in adjusted positionthereon by a set-screw 27. This block 26 has attached to it by aset-screw 28 a link 29, the outer end of which is pivotally attached toa post or bridge 30, in turn pivoted at its upper and lower ends bysuitable pivotsorews to the link 0 so that the movement of the saidlever (Z causes the said link to be moved upon its pivot C in adirection to cause the rand or counter guard ct to be moved toward orfrom the rotary cutter D, and at the same time that the said link is somoved the roller or other stud c, traveling in the slotted portion ofthe cam 0 causes the carriage O to tip more or less upon the pivot 83,which supports the carriage upon the link 0 the curve or are in whichthe lipof the rand-guard travels during its movement followingsubstantially the curvature of the edges of the blades which areattached to or form part of the rotary cutter.

The heel-rest m, upon which rests the heel to be trimmed, is hereinshown as provided with a shank m, which enters a hole in an arm 33, sothat the said rest may be turned as about a vertical pivot.

The arm 33 is made adjustable horizontally in a lever m, and it may alsobe turned about its axis in said lever, and when in position it is heldin place by a setscrew 3i.

The rear end of the lever m has connected to it a rod 971 provided atits lower end with aroller or other stud, which enters a cam-slot m in aportion of the arm 23, connected to or actuated by the treadle 24,before described, said cam-slot at being of such shape that when thetreadle is moved the lever m will be moved, together with the heel-reston, so

that the heel will be raised or lowered properly while the cutter actsuponthe substantially straight sides of the heel. When the rest is beingactuated positively to move the heel while the rotary cutter trims thesubstantially straight sides thereof, the rand or counter guard is, itwill be understood, tipped more or less to cover or uncover more or lessof the acting edges of the blades of the cutter, especially when thecutter is trimming the substantially circular or rear part of the heel,and at such time the rest on is free to tip or turn about its pivot, sothat it may remain with its acting edge substantially parallel with thelifts composing the heel. Prior to this my invention the rest m, onwhich the shoe is support ed and turned while being trimmed, has alwaysremained parallel to the tread-guard or to the plane in which thetread-guard stands, and when the heel was tippedas when trimming aboutthe rear part thereofthe said heel has had to swing on the said rest,which, when the heel is considerably concaved, has prevented the heelfrom taking a bearing on the rest at the point where the heel is ofleast diameter, and consequently the heel cannot, except with greatestcare, be held steadily by the hand of the operator while being trimmed.To overcome this evil, the rest m, herein shown, has been mountedloosely upon its carrying-arm 33, as

described, so that the said rest is left free to turn on the said armwith the heel as the latter is tipped, whielris the case while the rearend of the heel is being trimmed, and consequently the heel bears at alltimes in like manner upon the rest on during the trimming operation.

Prior to my invention I am aware that heel-trimming machines have beenprovided with fixed rests-with rests that have been made adjustable invarious directions; but when trimming the heel the rests have not beenmovable, as herein provided for.

I have herein shown a rotary heel-cutter, a carriage, a supporttherefor, a rand-guard attaehed to the said carriage and shaped to project over the heel-cutter, a rotary rand-cutter, and a tread-guard; butI do not herein claim any one of the said devices or the combination ofany one or more of the said devices, broadly, as the same form thesubject-matter of several claims in my application, Serial No, 275,880,filed June 2, 1888.

I claim- 1. In a heel-trimming machine, a rotary cutter to trim theheel, and a carriage having an attached rand or counter guard to enterthe rand-crease, combined with a single link, upon which the carriage ispivoted, and with a roller or other stud c and a cam with which it 00-operates, substantially as described, whereby when the link is movedtoward and from the rotary cutter the carriage may be tipped to operatesubstantially as described.

2. In a heel-trimming machine, a rotary cutter, a carriage having anattached rand or counter guard, and means to support the carriage,combined with a treadle and connections between the treadle and supportfor the said carriage, whereby the carriage may be moved positivelytoward and from the rotary cutter, as and for the purpose described.

In a heel-trimming machine, a carriage, a rand or counter guard attachedthereto, and support for the said carriage, a rotary cutter, a rest onwhich the heel of the shoe is placed while being trimmed, and a treadle,combined with connections between the said rest and the support for thesaid carriage, whereby the said carriage and rest are movedautomatically in both directions, substantially as described.

etc. In a heel-trimming machine, the lever m, combined with theadjustable arm 33 and the adjustable rest m, mounted thereon,substantially as described.

5. In a heel-trimmin g machine, the combination, with the rotary cutterhaving a tread- 41o,oss I a 3 In testimony whereof I have signed mynameguard, of the rest m for the heel to be to this specification in thepresence of two subtrimmed, and means to support the said rest, scribingWitnesses. i

the rest being adjustable upon its support to CHARLES W. GLIDDEN. placeit at an angle to the plane in which the WVitnesses:

tread guard stands, substantially as de- H. P. FAIRFIELD,

scribed. W. O. WILLSON.

